CVE-2020-35498

Description

A vulnerability was found in openvswitch. A limitation in the implementation of userspace packet parsing can allow a malicious user to send a specially crafted packet causing the resulting megaflow in the kernel to be too wide, potentially causing a denial of service. The highest threat from this vulnerability is to system availability.

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 5.67% Top 15%
Vendor Advisory debian.org Vendor Advisory fedoraproject.org Vendor Advisory gentoo.org
Affected: n/a openvswitch
Published at:
Updated at:

References

Link Tags
https://bugzilla.redhat.com/show_bug.cgi?id=1908845 issue tracking third party advisory patch
https://www.openwall.com/lists/oss-security/2021/02/10/4 mailing list third party advisory patch
https://www.debian.org/security/2021/dsa-4852 third party advisory vendor advisory
https://lists.debian.org/debian-lts-announce/2021/02/msg00032.html third party advisory mailing list
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UJ4DXFJWMZ325ECZXPZOSK7BOEDJZHPR/ vendor advisory
https://security.gentoo.org/glsa/202311-16 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2020-35498?
CVE-2020-35498 has been scored as a high severity vulnerability.
How to fix CVE-2020-35498?
To fix CVE-2020-35498, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2020-35498 being actively exploited in the wild?
It is possible that CVE-2020-35498 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~6% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2020-35498?
CVE-2020-35498 affects n/a openvswitch.
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